Jefferson County Traffic Division 300 Main St Hillsboro, MO 63050 Phone : (636) 797-5303 Business Category Government Offices-County Legislative Bodies Jefferson County Of--courthouse, 23rd Judicial Circuit, Division 11, Traffic Division Hillsboro, MO 63050 Phone : (636) 797-5303 Business Category Government Offices-County Government Offices & Public Schools Jefferson County Court House--23rd Judicial Circuit, Traffic Division Hillsboro, MO 63050 Phone : (636) 797-5303 Business Category Government Offices-County County Government-Courts Courts Government Offices & Public Schools